Until now, there have been few research works on Cambodian forests because of the long period of civil war, restricting forest researchers and surveyors in the area. This book presents many new topics of research in forests such as those of Cambodia, unavailable until now. One of the most attractive features of the volume is that it fills the gaps in data about the worlds forests. The book consists of three parts: forest hydrology, forest management, and forest ecology, designed to provide an understanding of continental river basins. Contained here are the latest data derived from advanced observation systems for atmospheric flux, ground water level, soil water movement, and stable isotope variation as well as remote sensing, which are used for continuous measurements of forest environments. These research results provide a bounty of fresh scientific information, creating a valuable resource not only for researchers and university students but also for forest administrators.